IDY10220 SECURITE High Seas Forecast for Western METAREA 10 12S TO 30S BETWEEN 90E AND 125E, AND 30S TO 50S BETWEEN 80E AND 129E Issued by the Australian Government Bureau of Meteorology For 24 hours commencing 1100 UTC 19 March 2026 Part 1 Warnings Refer to latest warnings for boundary of affected area and type of weather system. Melbourne Gale Warning 7. Melbourne Gale Warning 10. Part 2 Situation at 190600 UTC Low [1] 996hPa near 49S100E, forecast 990hPa near 51S122E at 201200UTC. Low [2] 1010hPa near 12S098E, forecast 1009hPa near 12S096E at 201200UTC. Cold front 47S071E 55S076E, forecast 40S101E 54S109E at 201200UTC. Part 3 Forecast Refer to latest warnings for details of the area affected: South of line 40S, outside warning area: Westerly quarter winds, shifting northwesterly quarter within 240nm east of cold front, and southwesterly quarter west of cold front. WInds shifting clockwise within 240nm of low [2]. Wind speeds 20/33 knots. Rough to very rough seas. Moderate to heavy swell. Remainder: Winds not exceeding 25 knots. Slight to moderate seas. Low to moderate swell. Rain areas, scattered showers and isolated thunderstorms within 320nm of low [2], and 180nm of cold front and low [1]. Visibility reducing below 2nm in precipitation. Please be aware Wind and wave forecasts are averages. Wind gusts can be 40 per cent stronger than the forecast, and stronger still in squalls and thunderstorms. Maximum waves can be twice the forecast height. WEATHER MELBOURNE The next routine forecast will be issued at 20:00 UTC Thursday.